Andy Goldsworthy builds sculptures that are designed to fall apart. Working in the fields and shoreline near his home in Dumfriesshire, Scotland, and on trips to Nova Scotia and Digne in France, he stacks stones into cairns, pins autumn leaves together with thorns, and freezes icicles into arches that the sun will dissolve within hours. Director Thomas Riedelsheimer films him at work rather than talking about the work: a driftwood construction on a beach collapses three times before the incoming tide finally lets it hold its shape, and the camera stays on his hands the whole time. Goldsworthy narrates in short, plain observations about weather, materials, and failure rather than theory, and the film cuts between finished pieces and the process of them being undone by wind, water, or gravity. There is no outside narrator and few other voices; the structure is seasonal, following him through a year of sites. The subject is process and impermanence, not preservation, since almost nothing he makes here is meant to last.